ALGEBRA
A letter that represents an unknown number in an equation.
What is a variable?
-2 + 3 = ?
What is 1?
The distance from the center of a circle to the edge.
What is radius?
The probability of landing heads on a coin.
What is 1/2?
Using the opposite to solve an equation.
What is inverse operations?
7 - (-10) = ?
What is 17?
The commonly excepted value for Pi
What is 3.14?
The chance a boy is chosen in a class of 16 boys and 8 girls.
What is 2/3 or 16/24?
In 1 year the lake level changes by -3/8 inch. If the change remains constant, how many inches will the lake have changed after 7 years?
What is -2 5/8?
The probability of rolling a prime number on a 12 sided die.
What is 5/12?
3n + 18 > 30
-56 divided by -7
What is 8?
A swimming pool has a radius of 9 feet. So its circumference is _______.
What is 56.52 feet?
The probability of rolling an even number.
What is 3/6 or 1/2?
A table has a diameter of 6 feet. So its area is ______.
What is 28.26 sq. ft?